APA Edition Citation

Melvil Dewey. (2011). DDC 23- Vol.I: Dewey Decimal Classification And Relative Index (23.). Online Computer Library Center.

Chicago Edition Citation

Melvil Dewey. DDC 23- Vol.I: Dewey Decimal Classification And Relative Index. 23. USA: Online Computer Library Center, 2011.

MLA Edition Citation

Melvil Dewey. DDC 23- Vol.I: Dewey Decimal Classification And Relative Index. 23. Online Computer Library Center, 2011.

Warning: These citations may not always be 100% accurate.